As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON INITIAL CLIMB FROM KCVG STATNDY ATTITUDE INDICATOR BECAME ERRACTIC AND UNRELIABLE AC RETURNED TO FIELD AND RETURNED TO BLOCKS ,MTX GROUNDED AC .MTX TROUBLE SHOT AND REMOVED AND REPLACED THE STBY INTEGRATED INDICATOR REF B767 AMM SUPPLEMENT 34-20-00. ALL OPS NORMAL.. MTX RETURNED AC TO SERVICE .